Method of scalloping glassware.



No. 769,135. PATENTED AUG. 30, 1904 A. GRUNDSTROM.

METHOD OF SOALLOPING GLASSWARE.

APPLICATION FILED AUG. 6' 1903- NO MODEL.

WITNESSES I /-/v VEN 70f? A TTOHNE KS v UNITED STATES Patented August30, 1904.

PATENT OF ICE.

ANTON GRUNDSTR'OM, OF MONAOA, PENNSYLVANIA, ASSIGNOR TO PHOENIX GLASSCOMPANY, OF MONAOA, PENNSYLVANIA, A CORPORATION OF WEST VIRGINIA.

METHOD OF SCALLOPING GLASSWARE- SPECIFICATION forming part of LettersPatent No. 769,135, dated August 30, 1904,

Application filed August 6, 1903. Serial No. 168,517- (No model.) i

T0 at whom/1125 may concern:

Be it known that I, ANTON GRUNDS'FROM, a citizen of the United'States,residing at Mo naca, in-the county of Beaver and State of Pennsylvania,have invented certain new and useful Improvements in Methods ofScalloping Glassware; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

The object of my invention is to provide a novel method for producingscallops in the edges of glass articles, such as shades and globes forlighting-fixtures.

My invention consists in a novel method whereby any desired shape orpattern of scallop may be cut rapidly and witlraccuracy and the scallopsproduced ofuniform size and.

depth.

In carrying my invention into effect I employ a cutting-tool instead ofa pincers or chipping-tool'and so arrange the tool that it may berotated or turned on a pivot while the article to be cut is heldstationary. By properly adjusting the tool scallops of any radius may becut. The depth of the scallops may also be regulated, and by theexercise of proper skill on the part of the operator scallops of varyingor compound curvature may be cut.

The accompanying drawings illustrate a preferred form and arrangement ofan adjustable cutting-tool designed for cutting scallops according tofmy method.

Figure .1 is a perspective View of the cutter complete, and Fig. 2 is avertical longitudinal section of the same without the base or support.

A designates a flat board. or base having cleats B O at its ends tosupport the article while the same is being cut.

E designates a longitudinally-slotted ad justable slide which is movablelengthwiseof the board A and between the guides D D and which is held inposition when adjusted by the screw 6 and washer 0 F designatesasocketed bearing-plate secured to the slide E and designed and adaptedto constitute the'bearing for a pivot 9, attached to the handpiece H ofthe cutting-tool.

The handpiece H has attached to one end the metallic strips 2'z'fl'between the lower ends of which is journaled the cutting-wheel Thepivot g is loosely fitted in its bearing F and may be raised and loweredand otherwise manipulated to adapt it to its work. pieceH has a numberof holes or sockets bored in its lower edge, so that the pivot may beadjusted to different positions and the tool caused to describe at itscutting end scallops of different radius. The slide E is made adjustableto provide for cutting scallops of different depth.

The article to be cut or scalloped is held in one hand and its endsupported on one of the end cleats, with its edge on line with the inneredge of the cleat, while the cutting-t00l is moved in the arc of acircle, with the cuttingwheel in contact with the inner surface of thearticle and pressed against the same sufficiently to produce a cut orscore. Arcs or scallops of any desired size may be cut, and while thetool remains adjusted to any given position the arcs or scallops will beof uniform size. By proper relative movements of the article and thetool various shapes of scallops may be cut and designs composed ofcompound and inverted curves produced.

The scallops after being roughly cut by the cutting-tool are finishedsmooth on' the edges by means of a grinding-wheel.

Having described my invention, 1 claim as new and desire to secure byLetters Patent The method of producing scallops in the edges of hollowglass articles, which consists in supporting the article on a suitablebase, and cutting or scoring the inner surface of the article on linesdescribed from a fixed center, while manipulating the article in variousdirections to produce direct and reverse or compound curves.substantially as described.

In testimony whereof I alfiX my signature in GEO. E. WEHR, WI LIAM WEHR.

